5 ms·
Your source says its numbers are "generated with the unix command line tool ping", which reports round trip time. In fiber, with light traveling at about (2/3)
by mohn 5y ago
Your source says its numbers are "generated with the unix command line tool ping", which reports round trip time.
In fiber, with light traveling at about (2/3) * c, the minimum latency from SF to Tokyo would be about 42 ms.
- strix_varius 5y agoThose are point-to-point pings between data centers. The physical fiber optic floor from SF to Tokyo is about 50ms, point-to-point, with no sub-fiber last miles, wifi access points, or delay from routers and switches. Actual user-to-user latency is much higher than that. Agora, for example, cites: > Low latency, 400ms average globally